581466 has 8 divisors (see below), whose sum is σ = 1162944. Its totient is φ = 193820.

The previous prime is 581459. The next prime is 581473. The reversal of 581466 is 664185.

It is an interprime number because it is at equal distance from previous prime (581459) and next prime (581473).

It is a sphenic number, since it is the product of 3 distinct primes.

581466 is an admirable number.

It is a congruent number.

It is an unprimeable number.

581466 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48450 + ... + 48461.

It is an arithmetic number, because the mean of its divisors is an integer number (145368).

2⁵⁸¹⁴⁶⁶ is an apocalyptic number.

581466 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

581466 is a wasteful number, since it uses less digits than its factorization.

581466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96916.

The product of its digits is 5760, while the sum is 30.

The square root of 581466 is about 762.5391793213. The cubic root of 581466 is about 83.4657131512.

The spelling of 581466 in words is "five hundred eighty-one thousand, four hundred sixty-six".